Disease or Syndrome
presbyopia Audio
pres·by·o·pi·a [ prez-bee-oh-pee-uh, pres- ]
Subclass of:
Refractive Errors
Etymology:
Greek presbys = old + opsis = vision
Definitions related to presbyopia:
  • Age-related difficulty focusing the eyes at close range, as the flexible lens of the eye becomes less elastic.
    Harvard Dictionary of Health Terms
    Harvard Medical Publishing, 2011
  • The normal decreasing elasticity of the crystalline lens that leads to loss of accommodation.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
  • Presbyopia is the gradual loss of your eyes' ability to focus on nearby objects. It's a natural, often annoying part of aging. Presbyopia usually becomes noticeable in your early to mid-40s and continues to worsen until around age 65.
    Mayo Clinic
    Mayo Foundation for Medical Education and Research, 2025
  • Presbyopia, loss of ability to focus the eye sharply on near objects as a result of the decreasing elasticity of the lens of the eye. The eye's ability to focus on near and far objects--the power of accommodation--depends upon two forces, the elasticity of the lens of the eye and the action of the...
    Encyclopedia Britannica
    Encyclopedia Britannica, Inc., 2025
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